An electron microscope is a microscope that uses accelerated electrons as a source of illumination. Because the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, the electron microscope has a higher resolving power than a light microscope and can reveal the structure of smaller objects. A transmission...
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http://en.wikipedia.org/wiki/Electron_microscope
Device for the high magnification of a very thin object in vacuo by means of a beam of electrons in place of visible light.
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microscope that attains extremely high resolution using an electron beam instead of a beam of light to illuminate the object of study. See ... [19 related articles]
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http://www.britannica.com/eb/a-z/e/20
A microscope (device used to magnify small objects) that uses electrons (instead of light) to produce an enlarged image. An electron microscope shows tiny details better than any other type of microscope.
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<instrument> A microscope (device used to magnify small objects) which beams electrons at and through the object of interest instead of light beams. Instead of a glass lens to bend the light, a powerful magnet is used to bend the electron beam. The microscope can only be operated in a vacuum. This type of microscope provides the greatest reso...
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one in which an electron beam, instead of light, forms an image for viewing, allowing much greater magnification and resolution. The image may be viewed on a fluorescent screen or may be photographed. Types include scanning and transmission electron microscopes.
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Type: Term Definitions: 1. a visual and photographic microscope in which electron beams with wavelengths thousands of times shorter than visible light are used instead of light, thereby allowing much greater resolution and magnification; in this technique the electrons are transmitted through a thin section of an embedded and dehydrated specimen ma...
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http://www.medilexicon.com/medicaldictionary.php?t=55287
Electron microscope: Abbreviated EM. A microscope in which an electron beam replaces light to form the image. EM has its pluses (greater magnification and resolution than optical microscopes) and minuses (you are not really 'seeing' objects, but rather you are looking at their electron densities, and meaningless artifacts may abound). Nonetheless, ...
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[
n] - a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
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a type of microscope that uses short-wavelength electron beams rather than light to increase magnification and resolution
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https://courses.lumenlearning.com/microbiology/chapter/glossary/
an instrument that allows us to look at very small items too small to see with an optical microscope. It uses a focused beam of electrons to enlarge the image of an object on a screen or photographic plate
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noun a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
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Click images to enlargeInstrument that produces a magnified image by using a beam of electrons instead of light rays, as in an optical microscope. An electron lens is an arrangement of electromagnetic coils that control and focus the beam. Electrons are not visible to the eye, so instead of an eyepiece there is a fluoresc...
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a microscope of extremely high power that uses beams of electrons focused by magnetic lenses instead of rays of light, the magnified image being formed on a fluorescent screen or recorded on a photographic plate: its magnification is substantially greater than that of any optical microscope.
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